White Widow Auto - Organic Grow early flower deficiencies help!

[hedzenmedz]

Hi Everyone - we are currently organically growing 2 White Widow Autos from CKS. All was well until about a week ago (see attached photos). We have our soil (pro mix organic amended with EWC, kelp meal, alfalfa meal, perlite, bokashi). The plants are 55 days old and in total have hade 3 feedings of aerated compost tea. As I mentioned earlier, the plants looked very good until about a week ago when the spotted leaves started to show up. They are getting progressively worse each day. This is our 1st organic grow. Please help with some advice. The girls are 18/6 under 3 led lights (1 platinum p300, 2 viparspectra 450’s) which are about 18 inches above the highest colas. Grow temps are 81 degrees lights on and 70 lights off. Humidity is 45-50%.

 

[GoAuto6]

What is the soil pH? I see no mentioned n of pH anywhere.

 

[namvet25]

Looks like bad cal/mag def and lack of enough other nutes that happens with organic grows especially under all those led panels.

 

[hedzenmedz]

Looks like bad cal/mag def and lack of enough other nutes that happens with organic grows especially under all those led panels.

Hey Namvet25, thanks for your feedback. After reading your comment, I am going to do the following;

• Take out the 2 - 450 viparspectras and put in another platinum p300 as I am still growing 2 other plants (a gg4 auto and a chemdawg auto which are not being grown organically. They are close to being ready for harvest. This will give us 2 - platinum p300’s in the flower tent with 4 plants. Raise the lights to 22 inches. What are your thoughts?
• In order not to mess up my organic soil, I don’t want to add any bottled nutes. Any suggestions?

Thanks again for your feedback.

 

[hedzenmedz]

What is the soil pH? I see no mentioned n of pH anywhere.

GoAuto6 - Thanks for the feedback - I will check the ph of the soil and get back to you.

 

[namvet25]

Hey Namvet25, thanks for your feedback. After reading your comment, I am going to do the following;

• Take out the 2 - 450 viparspectras and put in another platinum p300 as I am still growing 2 other plants (a gg4 auto and a chemdawg auto which are not being grown organically. They are close to being ready for harvest. This will give us 2 - platinum p300’s in the flower tent with 4 plants. Raise the lights to 22 inches. What are your thoughts?
• In order not to mess up my organic soil, I don’t want to add any bottled nutes. Any suggestions?

Thanks again for your feedback.

How old are these plants?There are organic nutes you can buy but with out adding anything you might not get much of a yield.You can always start with good organic soil with natural organic matter added like sea kelp,bat guano,etc but after awhile the plants will use these up and will not amount to much.Even growing organic you will need to add organic nutes to grow a healthy plant.

 

[Canaduh]

Hey Namvet25, thanks for your feedback. After reading your comment, I am going to do the following;

• Take out the 2 - 450 viparspectras and put in another platinum p300 as I am still growing 2 other plants (a gg4 auto and a chemdawg auto which are not being grown organically. They are close to being ready for harvest. This will give us 2 - platinum p300’s in the flower tent with 4 plants. Raise the lights to 22 inches. What are your thoughts?
• In order not to mess up my organic soil, I don’t want to add any bottled nutes. Any suggestions?

Thanks again for your feedback.

I grow organically and swear by Medi One. It's an organic supplement that feeds the micro organisms in the soil, and it's nothing short of amazing. I'm also experiencing a mag deficiency, although not so severe, and am going to try a tsp of Epsom salts/litre over my next couple of feedings. I feed calmag with every feeding but find it just doesn't provide the magnesium my plants are demanding.

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[hedzenmedz]

What is the soil pH? I see no mentioned n of pH anywhere.

I checked the soil ph - it is 6.0

 

[hedzenmedz]

I grow organically and swear by Medi One. It's an organic supplement that feeds the micro organisms in the soil, and it's nothing short of amazing. I'm also experiencing a mag deficiency, although not so severe, and am going to try a tsp of Epsom salts/litre over my next couple of feedings. I feed calmag with every feeding but find it just doesn't provide the magnesium my plants are demanding.

Sent from my SM-G950W using Tapatalk

Hey Canaduh, thanks for the tip. I will give Medi One a try. Also, I’ll try the Epsom salts. I had presumed the glacial rock dust would provide enough calcium / magnesium, as I have been using it in my compost teas and also have been top dressing with it. Stay woke.

 

[Waira]

hedz-- I'd say you have more than one issue here,... more than one defc., and pH in-pot is suspect,... Symptoms look like Mn defc., I see some possible P defc. too,... Like Nammy said, your soil was fairly rich when you started, but even with the teas (what exactly? any idea about the N-P-K in it?), it's not enough to carry her through in good shape,... unless you have the kind of "super" soil that can carry and release enough nutes to finish with, you'll need to feed more, especially micronutrients,... there are lots of good organic nutes, some bottled for ease of use,...Roots Organic line, General Organics,.. some others too, a few are a mix of organic and synthetic... I run both on my plants!
A myth to dispel, using organics means you don't have to even monitor the pH in the pots- ... plenty can go off using organic nutes to cause off pH in there,... typically you don't need to pH adjust the feed solution though, unless it's really acidic (feeds are in general),.... If you grow in soil, get a pH probe for testing in-pot; the Accurate 8 is good model for this,...
So, what to do,... you need to get more properly balanced feeds in there, higher PK; micronutes, I like Earth Juice Microblast,... As for the in-pot pH, that's more difficult to asses; what's you water source like for pH and hardness? I'm need to figure out if the soil in in fact off range,... barring a dubious run-off test, let's first see what the water info is,... then maybe take a very crude run-off test,....